CP4020 AC DC Current Probe 100 kHz Bandwidth 20 ARMS Continuous 60 A Peak

The CP4020 current clamp probe from Siglent is a versatile AC/DC measurement accessory designed for general-purpose test applications. It delivers a bandwidth up to 100 kHz and handles continuous currents of up to 20 ARMS, with a peak current rating of 60 A. Dual attenuation ratios enable measurement modes of 50 mV/A and 5 mV/A, with DC measurement accuracy of approximately ±2% across operating ranges. The probe supports both oscilloscope and multimeter connections via its standard BNC output and optional BNC‑to‑banana adapter. Powered by a 9 V battery, it features a 2 m cable, clamps up to 10.3 mm conductor diameter, and includes auto-zero circuitry and overload indication. Compact and lightweight, it weighs about 310 g and measures roughly 231 × 67 × 36 mm. It’s ideal for power electronics testing, circuit debugging, and industrial current

Key Features

• Measures both AC and DC currents up to 20 ARMS continuous and 60 A peak (~70.7 ARMS)
• Provides dual attenuation ratios: 50 mV/A and 5 mV/A for wide dynamic range
• Bandwidth up to 100 kHz (–3 dB) with rise time ≤ 3.5 µs, suitable for fast transients
• DC accuracy ±2% across both attenuation settings (0.4–10 Apk at 50 mV/A; 1–60 Apk at 5 mV/A)
• Clamp opening up to 10.3 mm for cables or conductors
• Lightweight (~310 g), battery-powered with auto-zero and overload indicator for ease of use and safety